Moldform receptacle



p 1968 R F. FEINBERG 3,402,385

MOLDFORM RECEPTACLE Filed Aug. 1, 1966 Richard P. Feinberg,

INVENTOR. Ma 7 W B W .1. M1 )W M Maw United States Patent 3,402,385MOLDFORM RECEPTACLE Richard P. Feinberg, Maitland, Fla., assignor, bymesne assignments, to the United States of America as represented by theSecretary of the Army Filed Aug. 1, 1966, Ser. No. 569,520 1 Claim. (Cl.339-191) ABSTRACT OF THE DISCLOSURE A moldform receptacle wherein thepin inserts are wrapped with Teflon tape, and Mylar strips are insertedbetween the pin inserts before molding the receptacle.

This invention relates to molded receptacles and particularly relates toa molded receptacle made of a polyurethane material, with male or femalepins bonded within and insulated from each other by means of aninsulating material.

There is a need for a connector which can be made on-the-job. An exampleof this would be an assembly plant. It is, also, desired that themake-up of the connector be determined by the user. Previous assemblytechniques required the purchase of connectors of various sizes andshapes. This required a reservoir of various connectors to be maintainedto meet the needs of assembly. If a connector of unusual characteristicsor a nonstandard number of contacts were needed, it must be ordered,thereby causing a loss of time. The situation could arise when thedesired connector would not be an off-the-shelf item and the procurementtime would be even longer. Some assemblies desire to have cables ofpredetermined length to have molded connectors on its ends. Acquisitiontime could cause a needless delay in manufacture.

It is, therefore, an object of this invention to provide a method ofproducing a moldform receptacle which ca be made up on-the-job by theuser thereof.

It is, also, an object of this invention to provide a moldformreceptacle which has good insulating prop erties.

It is, yet, another object of this invention to provide a moldformreceptacle which may be made on-the-job and which may have the make-upthereof varied as desired.

Another object of this invention is to provide a moldform receptaclewhich may be molded to the end(s) of a cable ofpredetermined length.

A moldform receptacle can be easily made attached to the end of a cable.After inserting the ends of the cable into a mold and correspondinglyinto the male or female pins located with the mold, polyurethane is thenforced into the mold and allowed to harden. Further insulating featuresmay be obtained by the use of Teflon and Mylar. Teflon may be locatedaround the pins and Mylar may be located between the pins. The variousfeatures of novelty which characterize this invention are pointed outwith particularity in the claim annexed to and forming a part of thisspecification. For a better understanding of the invention, however, itsadvantages and specific objects, reference should be had to theaccompanying drawing and descriptive matter in which is illustrated anddescribed ice a preferred embodiment of the invention, and in which thesingle figure shows a cross-sectional view illustrating a basic conceptof the invention.

A cable of predetermined length 10 has the insulation removed from theconductors 12 thereof and the conductors having been cleaned with asolvent are inserted into the pin inserts 14. Caution should be taken sothat the exposed wire, when inserted into the crimp cup 16, does notextend out beyond the crimp cup. A predesigned aluminum mold, cleanedwith solvent and treated with mold release agent, accepts the pininserts in given slots. A strip of Mylar 18 is inserted between the pinsto increase the insulation properties and dielectric capabilities.Teflon tape 20 is wrapped around each pin to increase the insulatingproperties and to prevent the polyurethane 22 from creeping into oraround the friction lock area of the pin inserts. The same process takesplace whether the pin insert be male or female, although, the conditionsdiffer in the pin make-up. The polyurethane compound is injected intothe mold containing the prewircd pins. This process is performed byallowing the compound to flow from the bottom up, allowing all air toleave the mold.

It should be understood, of course, that the foregoing disclosurerelates only to a preferred embodiment of the invention and that it isintended to cover all changes and modifications of the example of theinvention herein chosen for the purpose of disclosure, which does notconstitute a departure from the spirit and scope of the invention.

I claim:

1. A moldform receptacle comprising: a molding compound; a plurality ofpin inserts; a multiconductor cable, the conductors thereof beingconnected to a corresponding one of said pin inserts; and means forinsulating said pin inserts from each other, said insulating meanscomprising an insulating tape wrapped about each of said pin inserts forthe entire length thereof and an insulating strip having a length atleast as great as the length of said pin inserts, disposed between saidpin inserts, parallel to said pin inserts, and spaced from said pininserts to increase the insulation therebetween; said pin inserts,multiconductor cable and insulating means being totally surrounded byand maintained in spaced relations by said molding compound, wherebysaid receptacle is adapted for carrying a high voltage without arcingbetween said pin inserts.

References Cited UNITED STATES PATENTS 1,918,071 7/1933 Watts 339-632,409,004 10/ 1946 Wall 339-60 2,677,115 4/1954 Stevens 339-6C 2,683,2877/1954 Cochran et a1 s 339-218 2,764,748 9/1956 Heller 339-196 2,932,8104/1960 Novak 339-59 3,093,434 6/ 1963 Francis 339-218 FOREIGN PATENTS72,358 11/1959 France.

1,138,161 1/1957 France.

MARVIN A. CHAMPION, Primary Examiner.

